CVE-2026-124308 Fraunhofer HHI VVdeC before 3.2.1 Use-After-Free via DecLibRecon::createSubPicRefBufs
Medium 5.8
Published
Updated
Check this codebase for CVE-2026-124308 and fix it if it is affected.
What it is: CVE-2026-124308 is a medium-severity vulnerability in fraunhoferhhi vvdec, published on 7 Nov 2026.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-124308 exists.
Affected product: fraunhoferhhi vvdec. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2026-124308/ (Markdown: https://insights.sbomify.com/CVE-2026-124308/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-124308?
CVE-2026-124308 is a medium-severity vulnerability in fraunhoferhhi vvdec, published on 7 Nov 2026.
Official description
Fraunhofer HHI VVdeC before 3.2.1 contains a heap use-after-free vulnerability in DecLibRecon::createSubPicRefBufs because decompressPicture clears m_subPicExtTasks without waiting for pending tasks. Attackers can supply a crafted multi-subpicture VVC bitstream to decoders using two or more threads, causing heap memory corruption or a decoder crash.
Weakness: CWE-416
Which versions are affected by CVE-2026-124308?
How do I fix CVE-2026-124308?
No fix has been published for CVE-2026-124308 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-124308 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-124308 exists.
Sources
Also known as GHSA-g75c-jvvc-4qf4.